$A$: Pyrenoids may or may not be surrounded by a sheath of starch plates in algae.
$R$: In higher plants,these are replaced by amyloplasts.

Read the following statements and choose the set of correct statements: In the members of Phaeophyceae,
$A$. Asexual reproduction occurs usually by biflagellate zoospores.
$B$. Sexual reproduction is by oogamous method only.
$C$. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
$D$. The major pigments found are chlorophyll $a$,$c$ and carotenoids and xanthophyll.
$E$. Vegetative cells have a cellulosic wall,usually covered on the outside by gelatinous coating of algin.
Choose the correct answer from the options given below:

$Chlamydomonas$,$Volvox$,$Ulothrix$,$Spirogyra$ and $Chara$ are examples of:

In $Ulothrix$,the zygote is

$Acetabularia$ is a:

The stored food in Phaeophyceae is .....